Electric spindle motor

Details Electric spindle motor Electric spindle motor

1997-07-03

1999-10-19

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310 905, 310 67R, 360 9807, 360 9904, 360 9908, 360102, H02K 708

Patent

active

059694483

ABSTRACT:
An electric spindle motor has a base assembly (19) and a hollow notatable hub (16) housing a motor. The hub (16) is mounted for rotation about an axis and a stator (12) is mounted on the base assembly (19) inside the hub (16). A liquid filled journal bearing (11,21) acts between the base assembly (19) and the hub (16) to provide radial support of the hub (16). A gas filled thrust bearing (26, 27, 35) also acts between the hub (16) and base assembly (19) to provide at least axial support of the hub (16).

REFERENCES:
patent: 5760509 (1998-06-01), Chung
patent: 5770906 (1998-06-01), Hazelton et al.
Austrian Search and Examination Report, Singapore Application No. 9610228-0 Dated May 25, 1998.
Japanese Patent Office Abstract, Publication No. 06351190 A Dated Dec. 22, 1994.
International Publication No. WO 94/18464 Dated Aug. 18, 1994 of International Application No. PCT/JP93/00166.
French Publication No. 2 702 257 of Document No. 93 02514 Filed Mar. 04, 1993.

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